There is a set of peak parameters that are
typically included into reports, such as Height, Area, Width
at Half-Height, Asymmetry, Concentration and some other. The
core of Chrom&Spec software supports user-selectable formulas
for some of parameters – e.g. Efficiency, Asymmetry,
Resolution, Retention Index. Besides, in the cases of scientific
calculations or method/device validation there is a need for
more sophisticated calculations.

To support maximal flexibility with any method, Chrom&Spec
allows the user to program into the report any conceivable
calculation of peak parameters. These user-defined formulas
are a powerful tool for solving non-standard tasks.

Formulas are written in a specially designed macro language,
consisting of mathematical operators and macro-definitions.
The language allows addressing of any peak in the chromatogram,
calculates sums and averages, supports a lot of special functions,
such as calculation of peak width at a given height, center
of mass or median retention times, peak moments, spectral
ratios, etc. Calculated values can be included into the peak
table along with predefined ones.

The core of Chrom&Spec allows to extend
sample description by the user-defined numeric or symbolic
fields. These fields can be accessed in formulas, extending
capability to automate any chromatographic method to the
maximal extent and to get all required values in the report,
generated by Chrom&Spec..